EESA06H3 Lecture : ch. 20.docx
Document Summary
Canada: a young nation, but an old country. Canada has been in existence since 1867 as a nation where the act of confederation brought together ontario, new brun, nova scotia, quebec to create a political entity. Last to join the political and economic group was newfoundland in 1949. Driving of the last spike in 1885 finished the transcontinental railway. The process of continental building has taken more than 4bill yrs to accomplish. Construction on na began at least 4000 million yrs ago with the formation of acasta gneiss of the northwest territories (part of slave province of canadian shield) The building of north america was complete by 65 mya, but modern landscape is the result of geologically recent glaciations that have occurred in the last 2. 5 million yrs. The last ice sheet left the southern portions of the country 12,000 yrs ago and labrador melted.
